Work that saw Fiveways roundabout partially closed for three weekends has been completed ahead of schedule.
The roundabout in Barton Mills opened at 7.45pm on Sunday evening rather than 5am on Monday Morning.
The Highways Agency has said that the reconstruction of the roundabout will not require further full closures however single lane closures may be required.
Work to the roundabout was carried out as part of a scheme to dual the A11 between Baton Mills and Thetford.
Traffic management continues to be in use along the A11 with speed restrictions of 40mph in place.